Quasinormal Mode Oscillations in an Analogue Black Hole Experiment

Author(s)

Torres, Theo ^[1] ; Patrick, Sam ^[1] ; Richartz, Mauricio ^[2] ; Weinfurtner, Silke ^{[3, 1, 4]}

Affiliation

^[1] Univ Nottingham, Sch Math Sci, Univ Pk, Nottingham NG7 2RD - England

^[2] Univ Fed ABC UFABC, Ctr Matemat Comp & Cognicao, BR-09210170 Santo Andre, SP - Brazil

^[3] Univ Nottingham, Sch Phys & Astron, Nottingham NG7 2RD - England

^[4] Univ Nottingham, Ctr Math & Theoret Phys Quantum Nonequilibrium Sy, Nottingham NG7 2RD - England

• Document type: Journal article
• Source: Physical Review Letters; v. 125, n. 1 JUL 1 2020.
• Web of Science Citations: 0

Abstract

The late stages of the relaxation process of a black hole are expected to depend only on its mass and angular momentum and not on the details of its formation process. Inspired by recent analogue gravity experiments, which demonstrate that certain black hole processes take place in gravitational and hydrodynamical systems alike, we conduct an experiment to search for quasinormal mode oscillations of the free surface of a hydrodynamical vortex flow. Our results demonstrate the occurrence and hint at the ubiquity of quasinorntal ringing in nonequilibrium analog black hole experiments. (AU)

• FAPESP's process: 13/09357-9 - Physics and geometry of spacetime
• Grantee: Alberto Vazquez Saa
• Support Opportunities: Research Projects - Thematic Grants
• FAPESP's process: 18/10597-8 - Quasinormal modes of a hydrodynamical black hole
• Grantee: Maurício Richartz
• Support Opportunities: Scholarships abroad - Research